Browsing Posts in Guided Weapons

Bavar-2 amphibian seaplane employs the 'Wing in Ground Effect' (WIG) principle to fly low above sea level. In fact, Bavar-2 traces back to the Russian Eska-1 an early WIG planes designed in the 1970s. It is equipped with maritime surveillance equipment, and communications for recce and target acquisition over the sea. The new plane is operated by the Iranian revolutionary Guards naval units. Photo: Fars news agency, by Vahid reza Alaei.

Iran is preparing a massive force of small but highly capable combat elements capable of disrupting oil transportation through the Persian Gulf and the Straight of Hurmoz choke point. The Iranians have developed unique operational concepts employing coordinated swarm attacks that could effectively defeat large, well protected surface combatants such as those operated by the allied naval forces present at the Gulf. Many of these Swarm elements are currently stationed at the naval base at Bandar Abbas, acting as the Swarm’s ‘Hornets Nest’ at the southern end of the Hurmoz Straits in the Persian Gulf. In recent, highly publicized naval exercises held by Iran’s Revolutionary Guards’, swarm attacks were demonstrated by engaging targets from extended range by anti-ship missiles, while smaller fast boats were closing in at high speed, firing rockets and Rocket propelled Grenades (RPG) from very short range.

An Iranian fast boat firing a 107mm rocket in direct fire against a naval target. Such boats are employed in swarm attacks, saturating a target defense. Photo: Fars news agency by Hossein Zohrevand.

In recent years Iran is escalating its swarm capabilities to higher levels, with the development of indigenous weapons and platforms tailored for the Persian Gulf Theater of operation. Among these elements are mini submarines, amphibian seaplanes, high speed missile boats and medium range anti-ship missiles. All are designed as compact, cost efficient element that together, creating a force multiplier that cannot be ignored even by the world’s largest, most capable navies.

Iranian Ghadir mini submarines are based at Bandar Abbas. Photo: FARS news agency by Vahid Reza Alaei

A key element in this ‘hornets nest’ is the Ghadir mini-submarine. The first two locally built subs were delivered in 2008 and this year during a visit at the base four subs were visible. These submarines built for short missions operating at shallow water, carrying out coastal reconnaissance, mine laying and engagement of surface targets, including moving vessels and oil rigs. Mining by submarines could become one of Iran’s modus operandi as detection or attribution of such action to the actual perpetrator is almost impossible.

Another element of the hornets nest was unveiled this week, as Iran’s Revolutionary Guards naval units displayed over a dozen planes during an official visit of the Guards’ commander, brig. General Ahmad vahidi at Bandar Abbas. Unveiled as a prototype in 2006, Bavar-2 is designed to operate as a rapid reaction force, equipped with aerial cameras and communications links transmitting images in real-time to command centers at sea or on land. The seaplane is also equipped with a machine gun. It is flown by a single pilot and is fitted to operate in day or night, using night vision devices.

In August 2010 the Iranians unveiled the ‘sting’ of the hornets – the new Zulfikar fast patrol boats (shown in the video below), an all-aluminum built fast boat armed with Iranian-made Nasr-1 medium range anti-ship missiles. (actually, an Iranian version of the Chinese C-704 missile). The Iranians plan to deploy large numbers of these boats, armed with the locally produced missiles, being able to saturate the defenses of highly protected surface vessels.

Iran's Revolutionary Guards naval forces unveiled the first amphibian aircraft squadron at Bandar Abbas in September 2010. Photo: Mehr News Agency

The new Bavar-2 Wind in Ground Effect (WIG) amphibian seaplane, designed to perform short range maritime surveillance, coastal patrol and provide target acquisition for the Zulfiqar fast boats, enabling them to launch their missiles at maximum range, thus avoiding counter attack from the surface. As a WIG amphibian, Bavar-2 has unique capabilities to ‘sea skim’ just above wave-top level, or perch at sea level, thus evading detection by hostile radars. Typically, such planes cruise at a speed of 130 km/h and perform optimally at an altitude of few meters above the sea although, technically some WIG designs can reach a maximum altitude of 300 meters.

In times of crisis it is assumed that the fast boats, submarines and seaplanes will disperse to many coastal locations, from where they will be able to launch surprise attacks against merchant ships, tankers or military targets. The submarines and amphibians will provide the eyes and ears for the missile carrying fast fast boats, which could group into attack swarms to strike and disperse immediately after it, thus making it difficult for the enemy to launch an effective counter strike.

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Laser JDAM

2000 pound Mk84 weapon fitted with GBU-54 Laser JDAM guidance kit loaded on an F-16 at Eglin Air Force Base, prior to a test flight in July 2010. The Precision Laser Guidance Set (PLGS) at the tip of the weapon is covered, to minimize wear of the transparent window protecting the seeker. Photo: Boeing

Boeing completed the first pair of seven flight tests of the MK-84 Laser Joint Direct Attack Munition (Laser JDAM) this summer at Eglin Air Force Base, Fla., as part of the new weapon qualification process. Integration of Laser JDAM will provide these heavy warheads with pinpoint strike precision, utilizing redundant navigation and guidance modes the guidance kit will enable midcourse GPS and terminal laser guidance, providing more effective, flexible attack modes.

In these recent tests the 2,000-pound weapon will engage fixed, relocatable and moving targets. During the first two tests performed in July 2010 two inert MK-84 Laser JDAM weapons were released from an F-16 flying at an altitude of 30,000 feet and a speed of Mach 0.95. Both weapons flew a series of aggressive, preprogrammed maneuvers to verify their maneuverability and aerodynamic performance.

An existing JDAM becomes a Laser JDAM with the installation of the Precision Laser Guidance Set (PLGS). “By adding the PLGS feature, warfighters can now attack relocatable and moving land and maritime targets with the same precision and reliability that they rely on every day with the existing JDAM.” Explains Kerry Bush, JDAM program manager for Boeing. The company has already qualified a lighter version of Laser JDAM – Guided Bomb Unit GBU-54, armed with the 500 pounds Mk82 bomb. Since fielding the weapon in 1998, Boeing has produced more than 215,000 JDAM guidance kits. Laser JDAM was fielded in 2008 and has since been used in combat in Afghanistan and Iraq.

Raytheon has developed an all new airframe and wings for the new SDB-53/B Small Diameter Bomb. The weapon was selected for the next generation SDB-2, to enter service in 2014. Photo: Raytheon

The U.S. Air Force has awarded the Raytheon Company (NYSE: RTN) US$450 million for the development and production of GBU-53/B for the Small Diameter Bomb increment II program. SDB II is the next generation of the lightweight, aerial precision-strike standoff weapon designed with integral capability to accurately strike moving and fixed targets in adverse weather conditions. Raytheon has developed an all-new, streamlined bomb casing and folding swept-wing for the new weapon (shown in the photo above), departing from the MBDA designed ‘Diamond Back’ configuration used by the Boeing designed SDB (photo on left). The SDB family of weapons developed by Boeing quadruples the number of weapons an aircraft can carry, enabling aircrews to attack more targets on each sortie.

Raytheon’s proposal was selected over a competing offer from Boeing and Lockheed Martin. Raytheon will begin producing the new weapons in 2013 with initial deliveries completing the first production lot by late 2014. The GBU-53/B incorporates an three-modal seeker featuring millimeter-wave radar, a semi-active laser (SAL) and an uncooled imaging infrared. The use of an uncooled thermal imager is a unique implementation of such sensor in aerial weapons, demonstrating the maturity and high resolution achieved with bolometric technology. “Our uncooled IIR seeker met all the warfighter’s requirements and reduced the weapon’s total life-cycle cost and logistics footprint” said Dr. Taylor W. Lawrence, Raytheon Missile Systems president. The tri-modal terminal seeker is a derivative from the seeker systems used in the 120mm Medium Range Munition for the M-1A2 tank and the cancelled XM-501 Precision Attack Missile. Raytheon also integrated a new ‘multi effect warhead’ designed to defeat armored targets, structures and soft target in the open with minimal collateral damage.

The SDB II multi-effect warhead defeats armored targets by penetration with shaped charge generated plasma jet. The effect is augmented by blast and fragmentation. Photo: Raytheon

Raytheon conducted a successful technical demonstration program, during which the company tested and verified that its form factored tri-mode seeker could seamlessly transition between modes. The GBU/53-B seeker proved its reliability during flight testing when it flew 26 missions in 21 days without a single hardware failure.

Karrar Production Line

Karrar drones seen at the final assembly line. The red paint indicate use for testing or as an aerial target. The green drone is in final assembly and hasn't been painted yet. While tracing its origin to aerial drones, Karrar is designed for aerial recce missions and deep strike, possibly extended range anti-ship and anti BMD missions. Photo: FARS News Agency

Iran has this week unveiled a new type of turbojet-powered drone designated ‘Karrar’ (striker in Farsi), described by Iranian officials as capable to perform long-range reconnaissance and attack missions. Iranian Defense Minister, Brigadier General Ahmad Vahidi announced on Sunday that the country’s first home-made long-range Unmanned Aerial Vehicles (UAVs) named ‘Karrar’ has a flight-range of 1,000km.

Karrar is described as capable of operating at long range, and in ‘great operational depth’, at high or low altitudes. According to Iranian reports, on reconnaissance missions the Karrar can record images flying over targets of interest and transmit them back to the ground control as it re-establishes communications. The drone can also carry weapons, two configurations were displayed – carrying a unitary bomb (what seemed to be a 1,000 or 500 lb weapon) on the centerline, or carrying two smaller weapons (assessed by their shape and size, these weapons could be the Kowsar (C-701) anti-ship missiles).

According to Iranian reports, on reconnaissance missions the Karrar can record images flying over targets of interest and transmit them back to the ground control as it re-establishes communications. The drone can also carry weapons, two configurations were displayed – carrying a unitary bomb (what seemed to be a 1,000 or 500 lb weapon) on the centerline, or carrying two smaller weapons (assessed by their shape and size, these weapons could be the Kowsar (C-701) anti-ship missiles).

In today’s analysis feature, Defense-Update speculate on several operational options available with this drone.  Overall, similar to other Iranian platforms, Karrar is based on a 1970′s technology and is unlikely to possess advanced cruise-missile capabilities.  The first question to be asked would be – whether it is an unmanned aerial vehicle (operated as a reusable asset) or is it a ‘one way only’ cruise missile? As it is based on a target drone, Karrar could perform both missions successfully and affordably.

read more on today’s Defense Update analysis of the Karrar drone.

MBDA team Concept Vision leader and a user representative show the new concept weapons at Farnborough 2010. Photo: Tamir Eshel

MBDA has embarked on an innovative evolution of next generation weapon systems designed to empower future infantry and dismounted warfighters with advanced, yet unavailable capabilities. Ideas for the new concepts were received from MBDA employees Throughout the world, and from military users and veterans. According to Michael Mew, Lead ENgineer for the Concept Visions program, the new weapons could be developed based partly on technologies already available, and could be demonstrated through the upcoming years. ‘This program sets our goals and could challenge our design teams for years to come’ Mew told Defense Update.